A Treatise On Plane Trigonometry: Containing An Account Of Hyperbolic Functions, With Numerous Examples (1888) is a comprehensive guide to the study of plane trigonometry. Written by John Casey, the book covers the basics of trigonometry, including the properties of triangles, the sine, cosine, and tangent functions, and their applications in solving problems related to angles and distances.The book also includes a detailed account of hyperbolic functions, which are a type of mathematical function that are used to describe the behavior of certain curves and surfaces. The author provides numerous examples and exercises throughout the book to help readers understand the concepts and apply them in practical situations.Overall, A Treatise On Plane Trigonometry: Containing An Account Of Hyperbolic Functions, With Numerous Examples (1888) is a valuable resource for students and professionals in the fields of mathematics, engineering, and physics who are looking to deepen their understanding of trigonometry and its applications.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.